Bisection-based asymmetric MT2 computation: a higher precision calculator than existing symmetric methods

TL;DR

This paper introduces a bisection-based algorithm for calculating asymmetric MT2 with higher precision and comparable speed to existing symmetric methods, enabling reliable machine-precision results.

Contribution

It presents the first algorithm capable of accurately computing asymmetric MT2 to machine precision at speeds similar to symmetric calculators.

Findings

Achieves better precision than existing methods

First to reliably compute asymmetric MT2 to machine precision

Operates at speeds comparable to fastest symmetric calculators

Abstract

An MT2 calculation algorithm is described. It is shown to achieve better precision than the fastest and most popular existing bisection-based methods. Most importantly, it is also the first algorithm to be able to reliably calculate asymmetric MT2 to machine-precision, at speeds comparable to the fastest commonly used symmetric calculators.